PLAN,TS OF SOUTHERN NEW JERSEY. 273 



Middle District. — Delanco, Mt. Holly, Clementon. 



Coast Strip.— Barnegat City (L), Surf City (L), Beach Haven Terrace (L), 

 Manahawkin. 

 Pine Barrens. — Folsom, Kenilworth (S). 



Scirpus eriophorum Michx. Pedicelled Wool-grass. 



PI. XX., Fig. 12. 



Scirpus Eriophorum Michaux, Fl. Bor. Am. I. 33. 1803 [Virginia to 



Georgia]. — Knieskern 34. — . 

 Scirpus Eriophorum var. laxus Willis 68. — Britton 265. 



Swamps throughout the State, especially abundant in the Pine 

 Barrens and along the Coastal strip. 



Fr. — ^Mid-Augaist into October; maturing distinctly later than 

 the preceding. 



Middle District.— -Washington Park (S), Lindenwold (S), Millville. 



Pine Barrens. — Penbryn (S), Malaga (S), Hammonton (S), Bamber Fol- 

 som. 



Coast Strip.— Suri City (L), Anglesea, Atlantic City (S), Absecon (S), 

 Ocean City (S), Forked River, Cox's. 



ERIOPHORUM L. 



Key to the Species. 



a. Leaves very slender, 1-1.5 mm. broad, triangular-channelled, a single in- 

 volucral bract, pappus pure white. 

 b. Upper cauline leaf with blade very short, less than sheath. 



E. gracile, p. 274 

 bb. Upper cauline leaf with blade longer than sheath. E. tetiellum, p. 273 

 aa. Leaves flat, involucral bracts, two or more, pappus more or less rusty. 



E. virginicum, p. 274 

 Eriophorum tenellum Nutt. Few-nerved Cotton-grass. 

 PI. XIX., Fig. 5. 

 Eriophorum tenellum Nuttall, Gen. Additions (p. i), 1818 [New Jersey]. 

 Eriophorum angiistifolium Barton, Fl. Phila. I. 2>7- 1818. 

 Eriophorum polystachyon Knieskern 34. — Willis 68. — Britton 265. 

 Eriophorum gracile Keller and Brown 66. 



In bogs of the Pine Barren district, also very rare or local in 

 similar situations in west Jersey and the Cape May peninsula. 

 As all the specimens so far obtained in our region are B. tenellum 

 (except one colony of B. gracile), I am inclined to think that 

 Dr. Knieskern's were the same and not B. polystachyon, as he 

 stated. Willis and Britton simply copied his record. 



Fr. — Early June to late June. 

 18 MUS 



